Apparatus and method for isolated lung access

a technology of isolated lung and apparatus, applied in the field of medical equipment, systems, methods, kits, etc., can solve the problem that the imaging capability of the lung usually does not exis

Inactive Publication Date: 2002-06-04
PULMONX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the inner catheter may in some instances incorporate optical and

Method used

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  • Apparatus and method for isolated lung access
  • Apparatus and method for isolated lung access
  • Apparatus and method for isolated lung access

Examples

Experimental program
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Embodiment Construction

Isolation of a lobar or sub-lobar region of the lung is accomplished by occluding a lumen of a bronchial passage (bronchiole) at a location distal to a first branch in the network of bronchial passages within the right or left lung. Substances may be delivered to and / or a washing fluid may be used to lavage the isolated lobar or sub-lobar region of the lung by introducing or exchanging materials through a lumen of an isolation catheter, usually in combination with delivery or exchange through a lumen of an associated inner catheter. An inflatable cuff or other expansible isolation element on the isolation catheter is positioned at an isolation location within the bronchial passage, and the cuff inflated. The inner catheter is then positioned at a desired location distal to the end of the isolation catheter, and the isolated region is thus accessible through at least two access lumens, i.e., one lumen through the inner catheter and a second annular lumen between the exterior of the i...

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Abstract

Apparatus, systems, methods, and kits are provided for isolating a target lung segment and treating that segment, usually by drug delivery or lavage. The systems include at least a lobar or sub-lobar isolation catheter which is introduced beyond a second lung bifurcation (i.e., beyond the first bifurcation in a lobe of the lung) and which can occlude a bronchial passage at that point. An inner catheter is usually introduced through the isolation catheter and used in cooperation with the isolation catheter for delivering and/or removing drugs or washing liquids from the isolated lung region. Optionally, the inner catheter will also have an occluding member near its distal end for further isolation of a target region within the lung.

Description

1. Field of the InventionThe present invention relates generally to medical apparatus, systems, methods, and kits. More particularly, the present invention relates to methods and apparatus for isolating sub-bronchial regions of the lung and delivering or retrieving substances from such isolated regions.Lung access and isolation is of interest in numerous therapeutic and diagnostic medical procedures. In particular, access to the lungs is useful for both local and systemic drug delivery, lung lavage, visual assessment and diagnosis of lung function, and the like.For drug delivery, access is most simply achieved by introducing an aerosol to the lungs through the mouth or nose, and a variety of inhalers, nebulizers, metered dose inhalers (MDIs), nasal sprayers, and the like, have been developed over the years. While very effective for many drugs, delivery through the mouth or nose can be very inefficient, often with less than 20% of the drug reaching circulation or a targeted local tre...

Claims

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Application Information

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IPC IPC(8): A61M16/04A61M1/00A61M25/06A61M25/00
CPCA61M1/0058A61M1/0084A61M16/0463A61M25/003A61M25/0662A61M25/0032A61M2210/1039A61M2025/0034A61M2025/0036A61M2025/1052A61M2205/587A61M16/0404A61M16/0459A61M16/0486A61M16/0484A61M16/0479A61M1/85A61M1/77
Inventor PERKINS, RODNEY A.SOLTESZ, PETER P.KOTMEL, ROBERT
Owner PULMONX
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